| Sold | Grade | Monthly Average |
| Jun 2018 | 9.4 | $99.95 |
| Mar 2010 | 9.4 | $24.00 |
| Sep 2009 | 9.4 | $24.00 |
| Jul 2009 | 9.4 | $24.00 |
| May 2024 | 8.0 | $39.00 |
| Nov 2021 | 8.0 | $79.00 |
| May 2019 | 8.0 | $92.00 |
| Mar 2019 | 8.0 | $92.00 |
| Dec 2013 | 8.0 | $36.00 |
| Dec 2011 | 8.0 | $24.00 |
| Jan 2016 | 6.5 | $15.00 |
| Mar 2019 | 6.0 | $59.00 |
| Oct 2016 | 6.0 | $69.00 |
| Jan 2014 | 6.0 | $27.00 |
| Sep 2010 | 6.0 | $14.25 |
| Jul 2024 | 4.0 | $36.00 |
| May 2022 | 4.0 | $40.00 |
| Mar 2021 | 4.0 | $40.00 |
| Apr 2020 | 4.0 | $40.00 |